update: dashboard page admin

src/routes/admin.js

@@ -0,0 +1,56 @@
+const express = require('express');
+const usersRepo = require('../repositories/usersRepo');
+const songsRepo = require('../repositories/songsRepo');
+const suggestionsRepo = require('../repositories/suggestionsRepo');
+const setlistsRepo = require('../repositories/setlistsRepo');
+const { requireAdmin } = require('../auth/middleware');
+const asyncHandler = require('../lib/asyncHandler');
+
+const router = express.Router();
+
+router.get(
+  '/stats',
+  requireAdmin,
+  asyncHandler(async (req, res) => {
+    const [users, songs, suggestions, concerts] = await Promise.all([
+      usersRepo.findAllWithActivity(),
+      songsRepo.getStats(),
+      suggestionsRepo.getStats(),
+      setlistsRepo.getStats(),
+    ]);
+
+    res.json({
+      userCount: users.length,
+      users: users.map((u) => ({
+        id: u.id,
+        name: u.name,
+        avatarUrl: u.avatar_url,
+        isAdmin: u.is_admin,
+        createdAt: u.created_at,
+        lastSeenAt: u.updated_at,
+        songsAdded: u.songs_added,
+        suggestionsProposed: u.suggestions_proposed,
+        votesCast: u.votes_cast,
+      })),
+      songs: {
+        totalSongs: songs.total_songs,
+        distinctArtists: songs.distinct_artists,
+        tutorialsAdded: songs.tutorials_added,
+      },
+      suggestions: {
+        total: suggestions.total,
+        pending: suggestions.pending,
+        approved: suggestions.approved,
+        rejected: suggestions.rejected,
+        totalVotes: suggestions.total_votes,
+      },
+      concerts: {
+        pastConcerts: concerts.past_concerts,
+        upcomingConcerts: concerts.upcoming_concerts,
+        avgSongsPerConcert: concerts.avg_songs_per_concert,
+      },
+    });
+  })
+);
+
+module.exports = router;

src/routes/index.js

@@ -6,6 +6,7 @@ const suggestionsRoutes = require('./suggestions');
 const setlistsRoutes = require('./setlists');
 const musicSearchRoutes = require('./musicSearch');
 const calendarRoutes = require('./calendar');
+const adminRoutes = require('./admin');
 
 const router = express.Router();
 
@@ -16,5 +17,6 @@ router.use('/suggestions', suggestionsRoutes);
 router.use('/setlists', setlistsRoutes);
 router.use('/music-search', musicSearchRoutes);
 router.use('/calendar', calendarRoutes);
+router.use('/admin', adminRoutes);
 
 module.exports = router;